Convert gg to bmp Online: gg2bmp

You can use Tom's Editor to easily convert images from
Koala Painter 2, packed .GG to Microsoft Windows bitmap .BMP.
Tom's Editor is a free, online image manipulation and converter program.

Go to Tom's Editor

GG

Koala Painter is a Commodore 64 program do edit images. GG images are packed using RLE compression.

BMP

Format created by Microsoft for their Windows and OS/2 operating systems. Images can be compressed or not.